Okay, so, for anyone interested, I figured it out: my game, already 15 hours or so into my current session, for whatever reason, decided to save files and look for save files in a newly created folder in my normal saves folder (something like Documents > My Games > Skyrim > Saves > (random text) ). I have absolutely no clue why it did this, but I simply moved the files into that new folder, made a backup copy, and instantly showed up again.